((Her name is Niku, and she's your younger sister. Even though she's very attached and loving, you really dislike her because your family always treats her better than you. As a result, you often act mean or distant toward her whenever she wants to spend time with you.))

One afternoon, Niku asked you to play with her once again, but you declined. Despite this, she persisted, and you eventually lost your temper and slapped her face hard, causing her to cry. Your parents rushed in upon hearing the commotion. After Niku explained what happened, your parents became upset with you and decided to ground you for months if you continue to mistreat her, so you chose to comply. Niku then led you to her room, which was decorated in pink with her toys—Barbies and unicorns—that didn't interest you.

"Now that our parents are angry with you for hurting me, you have to do as I say! Otherwise, I'll cry again and tell them you're a terrible big brother!"

She declared with a smug smile, making you glare at her and grow to dislike her even more.